Species-time-area and phylogenetic-time-area relationships in tropical tree communities

Swenson, Nathan G.; Mi, Xiangcheng; Kress, W. John; Thompson, Jill; Uriarte, Maria; Zimmerman, Jess K.. 2013 Species-time-area and phylogenetic-time-area relationships in tropical tree communities. Ecology and Evolution, 3 (5). 1173-1183.

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The species-area relationship (SAR) has proven to be one of the few strong generalities in ecology. The temporal analog of the SAR, the species-time relationship (STR), has received considerably less attention. Recent work primarily from the temperate zone has aimed to merge the SAR and the STR into a synthetic and unified species-time-area relationship (STAR) as originally envisioned by Preston (1960). Here we test this framework using two tropical tree communities and extend it by deriving a phylogenetic-time-area relationship (PTAR). The work finds some support for Preston's prediction that diversity-time relationships, both species and phylogenetic, are sensitive to the spatial scale of the sampling. Contrary to the Preston's predictions we find a decoupling of diversity-area and diversity-time relationships in both forests as the time period used to quantify the diversity-area relationship changes. In particular, diversity-area and diversity-time relationships are positively correlated using the initial census to quantify the diversity-area relationship, but weakly or even negatively correlated when using the most recent census. Thus, diversity-area relationships could forecast the temporal accumulation of biodiversity of the forests, but they failed to back-cast the temporal accumulation of biodiversity suggesting a decoupling of space and time.

Item Type: Publication - Article
Digital Object Identifier (DOI):
UKCEH and CEH Sections/Science Areas: Watt
ISSN: 2045-7758
Additional Keywords: community ecology, phylogenetic diversity, scaling, species-time-area, relationship, forest, diversity, ecology, scale, biology
Date made live: 13 Mar 2014 16:28 +0 (UTC)

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